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Flexural Strength Analysis of RC T-Beams Strengthened Using Fiber Sheets
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 Title & Authors
Flexural Strength Analysis of RC T-Beams Strengthened Using Fiber Sheets
Park, Tae-Hyo; Lee, Gyu-Chul;
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 Abstract
Most of the concrete bridge structures are exposed to damage due to the excessive traffic loading and the aging of the structure. The damage of concrete causes the further deterioration of the function in the concrete structure due to corrosion of the reinforced bars and decohesion between the concrete and the reinforced bar. The quick rehabilitation of the damaged concrete structures has become of great importance in the concrete structural system in order to avoid the further deterioration of the structures. Recently fiber sheets are used for strengthening the damaged concrete structures due to its many advantages such as its durability, non-corrosive nature, low weight, ease of application, cost saving, control of crack propagation, strength to thickness ratio, high tensile strength, serviceability and aesthetic. However, the lack of analytical procedures for assessing the nominal moment capacity by the fiber sheet reinforcement leads to difficulties in the effective process of decisions of the factors in the strengthening procedure. In this work, flexural strengthening effects by fiber sheets bonded on bottom face of the member are studied for the reinforced concrete T beam. In addition, auxiliary flexural strengthening effects by U-type fiber sheets bonded on bottom and side faces of the member to prevent delamination of the bottom fiber sheet are theoretically investigated. The analytical solutions are compared with experimental results of several references to verify the proposed approach. It is shown that the good agreements between the predicted results and experimental data are obtained.
 Keywords
strengthening;RC T beam;fiber sheet;flexural analysis;
 Language
Korean
 Cited by
1.
GFRP 보강 철근 폴리머 콘크리트 T형 보의 휨 특성,김남길;황해근;연정흠;

한국콘크리트학회논문집, 2012. vol.24. 5, pp.585-596 crossref(new window)
1.
Flexural Characteristics of Reinforced Polymer Concrete T-Beams Strengthened with GFRP, Journal of the Korea Concrete Institute, 2012, 24, 5, 585  crossref(new windwow)
 References
1.
Neale, K.W., 'FRPs for Structural Rehabilita- tion: A Survey of Recent Progress,' Progress in Structural Engirvering and Matencds, Vol. 2, 2000, pp.133-138

2.
Hag-Elsafi, O., Alampalli, S. and Kunin, J., 'Application of FRP Laminates for Strengthening of A Reinforced-Concrete T-Beam Bridge Structure,' Composite Structures, Vol. 52, 2001, pp.453-466 crossref(new window)

3.
Chajes, M.J., Januszka, T.F., Mertz, D.R, Thomson, T.A and Finch, W.W., 'Shear Strengthening of Reinforced Concrete Beams Using Extemally Applied Composite Fabhcs,' Structural Journal, Vol. 92, No. 3, 1995, pp.295-303

4.
Norris, T., Saadatmanesh, H and Ehsani, M.R, 'Shear and Flexural Strengthening of R/C Beams with Carbon Fiber Sheets,' Journal of Structural Engineering, Vol. 123, No. 7, 1997, pp.903-911 crossref(new window)

5.
Saadatmanesh, H. and Ehsani, M.R, 'RC Beams Strengthened with GFRP Plates. I: Expehmental Study,' Journal of Structured Engineering, Vol. 117, No. 11, 1991, pp.3417-3433 crossref(new window)

6.
Sharif, A., Al-Sulaimani, G.J., Basunbul, I.A, Baluch, M.H. and Ghaleb, B.N., 'Strengthening of Initially Loaded Reinforced Concrete Beams using FRP Plates,' Structural Journal, Vol. 91, No. 2, 1994, pp.160-168

7.
박대효, 부준성, '밑면 및 옆면 섬유시트로 보강된 철근 콘크리트보의 휨 해석', 대한토목학회논문집, 제 22권, 5-A호, 2002, pp.1045-1057

8.
El-Mihilmy, M.T. and Tedesco, J.W., 'Analysis of Reinforced Concrete Beams Strengthened with FRP Laminate,' Journal of Structural Engineering, Vol. 126, No. 6, 2000, pp.684-691 crossref(new window)

9.
Shahawy, M, Chaallal, O., Beitelman, T.E. and El-Saad, A, 'Flexural Strengthening with Carbon Fiber-reinforced Polymer Composites of Preloaded Full-scale Girders,' Structural Journal, Vol. 98, No. 5, 2001, pp.735-742

10.
Deniand, C. and Cheng, J.J.R, 'Shear Behavior of Reinforced Concrete T-Beams with Externally Bonded Fiber-Reinforced Polymer Sheets,' Structural Journal, Vol. 98, No. 3, 2001, pp.386- 394

11.
Bencardino, F., Spadea, G. and Swamy, N., 'Strength and ductility of reinforced concrete beams externally reinforced with carbon fiber fabric,' Structural Journal, Vol. 99, No. 2, 2002, pp.163-171

12.
Wang, Y.C. and Restreto, J.I., 'Response of RC T-Beams Strengthened for Flexure with Staggered CFRP Plates,' Journal of Composites for Construction, Vol. 5, No. 3, 2001, pp.188-199 crossref(new window)

13.
Watson Bowman Acme Corp., 'Wabo® MBrace Composile Strengthening System,' Engineering Design Guidelines, 2002